>> and the brother of a slain u.s. servicemen tells cnn gold star families don't want the issue politicized. honoring the memory of the fallen should be the priority. former president barack obama has not said much since president trump took office. but that could change thursday. cnn's jeff zeleny has the details. >> reporter: about nine months after president obama left the white house here, he's going back on the campaign trail today, campaigning for democratic candidates in the states of new jersey and virginia. president obama has been more active than president bush was in his first year out of the white house, but he's still tried toin largely on the sidelines. he is beginning to campaign more in these governor races, in new jersey and virginia who told their elections in off presidential races. democrats are trying to use both of those states as ways to sort